The global submarine cable systems market is projected to grow from USD 19.95 billion in 2025 to USD 33.75 billion by 2030, at a CAGR of 11.1% during the forecast period. Expanding offshore wind power capacity significantly drives the market by increasing the demand for reliable power transmission infrastructure to connect offshore wind farms to onshore grids. As offshore wind projects are often located far from coastal regions, submarine cables are essential for efficiently transferring the generated electricity over long distances, necessitating advanced high-voltage direct current (HVDC) and cross-linked polyethylene (XLPE) cable systems. The growth in renewable energy initiatives, particularly in regions with ambitious decarbonization goals, further boosts the need for these cables to integrate clean energy into existing power networks.
Major players operating in the submarine cable
systems market are Alcatel Submarine Networks (France), Prysmian S.p.A (Italy),
SubCom, LLC (US), NEC Corporation (Japan), and Nexans (France). To
bolster their global presence and increase their share in the submarine cable
system market, these companies have implemented a range of organic and
inorganic growth strategies. These include collaborations, acquisitions, new
product launches, partnerships, agreements, and expansions. Through these
initiatives, they have successfully extended their reach into new geographies
by providing submarine cable systems.
Major Submarine
Cable Systems Companies Include:
- Alcatel
Submarine Networks (France)
- Prysmian
S.p.A (Italy)
- SubCom,
LLC (US)
- NEC
Corporation (Japan)
- Nexans
(France)
For instance, in June 2025, Southern Cross, Alcatel
Submarine Networks (ASN), and OMS Group signed the SX Tasman Express (SX-TX)
subsea cable contract to connect Sydney and Auckland. The system will add 400
terabits of capacity across 16 fibre pairs using ASN’s latest Open Cable
architecture and optimized latency. OMS Group will handle marine installation,
with design provisions for an alternate Australian landing.
Alcatel Submarine Networks (France)
Alcatel Submarine Networks is one of the
prominent players in the submarine cable system market. The company has
expanded its presence with the new office in Brazil to deliver cutting-edge
subsea fiber optic communication and sensing solutions for Brazil’s burgeoning
energy industry. It has received new contracts in recent years from
Infraestruturas de Portugal (IP) (Portugal), Istituto Nazionale di Fisica
Nucleare (INFN) (Italy), and other such clients, which implies that it aims to
achieve a higher market share through inorganic strategies. For instance, in
July 2023, Alcatel Submarine Networks (ASN) was awarded the implementation of
the Anel CAM project by Infraestruturas de Portugal (IP), a groundbreaking
submarine fiber optic cable network spanning 3,812km featuring six pairs of
optical fibers, providing a total capacity of at least 150 Tbps. The company
should continue developing technologies for enhanced submarine cable system
capacity, connectivity, and flexibility while optimizing procurement and
operational costs.
Prysmian S.p.A (Italy)
Prysmian S.p.A has laid submarine cables in key
areas, including the Viking Link, the Hudson Transmission project, and the
German corridor. The company aims to become a key enabler of clean energy
suppliers by offering efficient and high-voltage submarine cables that can facilitate
the transmission and distribution of energy between different power grids. It
follows an integrated business model, which enables it to win cost-effective
contracts, easily adapt to market demands, and deliver better consumer
satisfaction. Prysmian Group has secured a contract to supply and install a 1GW
submarine interconnection project in the Adriatic Sea for Italian transmission
system operator Terna. This strategic infrastructure project aims to enhance
Italy’s electricity transmission grid’s safety and resilience by extending a
high-voltage direct current bipolar cable line for 250 km.
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Market Ranking
The submarine communication cable market is
comparatively consolidated, with the top five participants, namely, Alcatel
Submarine Networks (France), Prysmian S.p.A (Italy), SubCom, LLC
(US), NEC Corporation (Japan), and HENGTONG GROUP CO., LTD. (China). These
players collectively account for 50–60% of the global market share. In the
dynamic submarine communication cable market, several companies have solidified
their positions as leading innovators and solution providers. Alcatel Submarine
Networks has long-standing expertise in fiber-optic technology and its role as
a pioneer in submarine cable systems. Prysmian S.p.A’s leadership is driven by
its diversified portfolio, spanning power and communication cables, which
provides a competitive edge in integrated solutions. SubCom, LLC’s prominence
is attributed to its extensive experience deploying submarine cables. NEC
Corporation leadership stems from its historical dominance in Japan’s
telecommunications sector and its advanced optical communication technologies.
HENGTONG GROUP CO., LTD.’s rise is fueled by China’s aggressive push in global
telecommunications, supported by state-backed initiatives and cost-competitive
manufacturing.
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